{"cve":"CVE-2026-55646","nvd":{"published":"2026-07-06T20:16:37.663","modified":"2026-10-25T20:10:00.147","status":"Analyzed","description":"vLLM is an inference and serving engine for large language models. From 0.22.0 to 0.23.0, the /v1/audio/transcriptions and /v1/audio/translations routes call request.file.read() to fully materialize an uploaded audio file into memory before vLLM checks the documented VLLM_MAX_AUDIO_CLIP_FILESIZE_MB compressed upload size limit (default 25 MB) later in the speech-to-text preprocessing step, so an API caller who can reach those routes can submit an oversized multipart upload and cause vLLM to allocate memory proportional to the uploaded file size before the request is rejected as too large, creating memory pressure or terminating the process depending on deployment resource limits. This issue is fixed in version 0.24.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-400","CWE-770"],"references":["https://github.com/vllm-project/vllm/commit/b997071ec493765abbed990c65843ed05e4708a8","https://github.com/vllm-project/vllm/pull/45510","https://github.com/vllm-project/vllm/security/advisories/GHSA-v82g-2437-67m2","https://github.com/vllm-project/vllm/security/advisories/GHSA-v82g-2437-67m2"],"products":["vllm:vllm"],"source":"nvd","synced_at":"2026-10-25T23:44:34.550481224+00:00"},"epss":{"cve":"CVE-2026-55646","score":0.00519,"percentile":0.43835,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-v82g-2437-67m2","url":"https://osv.dev/vulnerability/GHSA-v82g-2437-67m2","summary":"vLLM: Speech-to-text upload size limit is enforced after full UploadFile read","modified":"2026-07-17T17:30:17.924869326Z","packages":[{"ecosystem":"PyPI","name":"vllm","purl":"pkg:pypi/vllm","ranges":[">=0.22.0 <0.24.0"],"fixed":["0.24.0"]}]},{"id":"PYSEC-2026-2305","url":"https://osv.dev/vulnerability/PYSEC-2026-2305","summary":"","modified":"2026-07-13T07:15:46.688612660Z","packages":[{"ecosystem":"PyPI","name":"vllm","purl":"pkg:pypi/vllm","ranges":[">=0.22.0 <0.24.0"],"fixed":["0.24.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}